Planetal is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.

From 1815 to 1947, the constituent localities of Planetal were part of the Prussian Province of Brandenburg. From 1952 to 1990, they were part of the Bezirk Potsdam of East Germany. On 1 July 2002, the municipality of Planetal was formed by merging the municipalities of Dahnsdorf, Kranepuhl, Mörz and Locktow.

Planetal: Population development
within the current boundaries (2013)

Year Pop. ±% p.a. 1875 1,146 —     1890 1,117 −0.17% 1910 1,275 +0.66% 1925 1,273 −0.01% 1933 1,274 +0.01% 1939 1,220 −0.72% 1946 1,826 +5.93% 1950 1,728 −1.37% 1964 1,343 −1.78% 1971 1,334 −0.10% 1981 1,181 −1.21% 1985 1,170 −0.23% 1989 1,139 −0.67% 1990 1,117 −1.93% 1991 1,111 −0.54% 1992 1,096 −1.35% 1993 1,097 +0.09% 1994 1,106 +0.82% 1995 1,081 −2.26% 1996 1,059 −2.04%

Year Pop. ±% p.a. 1997 1,041 −1.70% 1998 1,061 +1.92% 1999 1,085 +2.26% 2000 1,086 +0.09% 2001 1,088 +0.18% 2002 1,077 −1.01% 2003 1,075 −0.19% 2004 1,082 +0.65% 2005 1,059 −2.13% 2006 1,059 +0.00% 2007 1,045 −1.32% 2008 1,035 −0.96% 2009 1,015 −1.93% 2010 987 −2.76% 2011 983 −0.41% 2012 974 −0.92% 2013 945 −2.98% 2014 952 +0.74% 2015 959 +0.74% 2016 956 −0.31%